Home / 133,388.39-184,081.88-76,817.99

Finding the Fourth Proportional to 133,388.39, 184,081.88 and 76,817.99

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Solution

The fourth proportional to 133,388.39, 184,081.88 and 76,817.99 is: 106,012.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,388.39 : 184,081.88 = 76,817.99 : x
  2. Step 2: Convert to fraction form
    133,388.39/184,081.88 = 76,817.99/x
  3. Step 3: Cross multiply
    133,388.39x = 184,081.88 × 76,817.99
  4. Step 4: Simplify right side
    133,388.39x = 14,140,800,017.02
  5. Step 5: Solve for x
    x = 14,140,800,017.02/133,388.39
  6. Step 6: Final answer
    x = 106,012.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.